Hi all, long time lurker first time poster. Thank you very much for all the knowledge, you've all helped me out so much over the past few years of owning Vespas!
On my Allstate, i've been having an odd problem where everything is fine for a few weeks and I get in plenty of miles of worry free riding. Then for some reason it gradually seems the plates are not separating enough and with the clutch lever fully pulled in at a light it will start to want to creep forward. Within a few miles it will do the dreaded lurch/stall when put into first gear from neutral. Yesterday I got stranded at the beach (could have been worse), I adjusted the cable a few times to get it just backed out from not being able to kick start. I even changed to a new inner cable no luck at all. The violent lurch forward and stall every time.
This is the second time it's done this. It had been working no worries but I noticed over the course of a few miles it started getting really grabby until the lurch. I changed out the oil (standard Motul gearbox bottle) and cleaned off the clutch plates thinking maybe they had become sticky somehow. That did the trick for a few weeks and it ran great, but yesterday left me stranded. It's a 2port case with pinasco 177 and sip cosa style clutch. I'm not currently using a spacer behind clutch because the cosa spacer seemed to imake it lurch worse, only without the spacer did I get it working (seemingly) properly again.
Any ideas? Big thanks!